Rotor disc



FIG. 1 is an upper perspective view of another embodiment of a rotor disc for use in a rotor spray system according to the present subject matter;

FIG. 2 is a front view of the embodiment of the rotor disc as shown in FIG. 1;

FIG. 3 is a rear view of the embodiment of the rotor disc as shown in FIG. 1;

FIG. 4 is a right side view of the embodiment of the rotor disc as shown in FIG. 1;

FIG. 5 is a left side view of the embodiment of the rotor disc as shown in FIG. 1;

FIG. 6 is a top view of the embodiment of the rotor disc as shown in FIG. 1; and,

FIG. 7 is a bottom view of the embodiment of the rotor disc as shown in FIG. 1.

The broken lines, where present, in all FIG. views illustrate portions of the rotor disc that form no part of the claimed design. 

CLAIM The ornamental design for a rotor disc, as shown and described. 